Abstract
Ammonium nitrate leachant was used to accelerate the deterioration of mortars containing natural hydraulic lime binders. Loss of binder reduced the alkalinity and strength of the mortar and increased its sorptivity. The leached depth followed diffusion-controlled kinetics with the rate constant increasing in line with the increasing free calcium hydroxide content of the binder. A predictive model was developed for mortars, both uncarbonated, e.g. those found deep in mass masonry or at early age in new construction, and carbonated, e.g. those exposed to the atmosphere.
Original language | English |
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Title of host publication | 35th Cement and Concrete Science Conference |
Number of pages | 3 |
Publication status | Unpublished - 2015 |
Event | 35th Cement and Concrete Science Conference - University of Aberdeen, Aberdeen, United Kingdom Duration: 26 Aug 2015 → 28 Aug 2015 |
Conference
Conference | 35th Cement and Concrete Science Conference |
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Country/Territory | United Kingdom |
City | Aberdeen |
Period | 26/08/15 → 28/08/15 |
Keywords
- Natural hydraulic lime
- Mortar
- Leaching
- Strength
- Sorptivity